Don’t think so. Most of the sacraments were jettisoned pretty quickly at the beginning of the Reformation. Tho I believe the Anglicans kept all of them.
There is no way to tell if a sacrament “works” - there is nothing to see, hear, taste, touch, smell. It’s a matter of faith.
But, there still must be an insurance that, that piece of bread on the altar is actually Jesus. Who ensures you that the sacrament is valid? Only the Church’s authority can insure you, and this is a matter of faith. You believe, because the Church is sure of this. If you believe only on the simple fact that it looks like it, like in an Anglican Church, where all the essential words and aspects look and sound right, then you are in peril of committing idolatry. You are adoring a piece of bread, though with all the good intentions you might have, it will hurt your soul. The Church has declared that the Holy Orders of the Anglican Church are invalid, for there cannot be insurance of apostolic succession among their bishops, which leads to invalid ordination of priests, which leads to invalid Eucharist.
There must be a way to tell. And it is only because the Church ensures us of this, on the promises and actions of Christ. It’s a matter of faith if you believe that bread to be the Body of Christ, it is not just a matter of faith for it to really be the Body of Christ.
As for OP, Luther was quite opposed against Catholic faith. He had several issues with the Church, but indeed not on all essential matters of the faith.
The Babylonian captivity of the Church written in 1520, this is only 3 years after the famous 95 theses, wrote against the Catholic view of the Sacraments, and even removed Confirmation from the list, as considering irrelevant. He writes:* I wonder what could have possessed them to make a sacrament of confirmation out of the laying on of hands.* He was quite the champion of the Eucharist:
Not one of the Fathers of the Church, though so numerous, ever spoke as the Sacramentarians: not one of them ever said, It is only bread and wine; or, the body and blood of Christ is not there present. The real blow came, when Calvin and Zwingli started their own protestant reformations. They began to really hammer at everything Catholic. Interestingly, all these three characters were Catholic priests. One wonders!?

Calvin was the first to throw the Blessed Eucharist out of a church, and then spat on it, as did all present with him. The place is still marked to this day, and many as they walk by that place still spit there. Though many know not why.
So, as you can see, even Luther, though keeping some of the Sacraments, still rejected the Confirmation. And the view he had on how the Sacraments work, was quite different from the Catholic view.